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Nutrient Leaching from Switchgrass for Biofuel: Effects of Extraction Concentration, Temperature and Solvent

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dc.contributor.advisor Gordon, Andy
dc.contributor.author Henderson, Chad
dc.date.accessioned 2015-09-09T13:52:25Z
dc.date.available 2015-09-09T13:52:25Z
dc.date.copyright 2015-09
dc.date.created 2015-09
dc.date.issued 2015-09-09
dc.identifier.uri http://hdl.handle.net/10214/9181
dc.description.abstract The amount of nutrients in biomass will affect combustion efficiency. Homogenized samples of spring harvested switchgrass cv. Cave-in-Rock were ground to 1 mm, treated at varied switchgrass concentrations (25, 50, 75 and 100 g/L), temperatures (20, 40 and 60 ˚C) and initial mineral concentrations in several water solvents (distilled, tap and well water). After solvent removal, percent weights of nitrogen, calcium, phosphorus, potassium, magnesium, sulphur and chlorine in the switchgrass were analysed. Switchgrass concentration of 100 g/L reduced phosphorus leaching by 46 % and potassium by 54 % compared to 25 g/L. Higher temperature had a significant effect on the amount of potassium and sulphur that could be removed. Solvent type had a significant effect on leaching for calcium, phosphorus, potassium, magnesium, chloride and sulphur, but the best water type for leaching varied. Spring harvested switchgrass of this cultivar does not need to be further leached to meet combustion standards. en_US
dc.language.iso en en_US
dc.subject biofuel en_US
dc.subject switchgrass en_US
dc.subject direct combustion en_US
dc.subject nutrient leaching en_US
dc.title Nutrient Leaching from Switchgrass for Biofuel: Effects of Extraction Concentration, Temperature and Solvent en_US
dc.type Thesis en_US
dc.degree.programme Environmental Sciences en_US
dc.degree.name Master of Science en_US
dc.degree.department School of Environmental Sciences en_US


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